That expression 5c +7m gives the number of the people can ride and c cars and m minivans what are the coefficients in this expression?

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.

3/4 = c/36 i need with this fraction proble.